Effects of structural environmental enrichment on welfare of juvenile seabream (Sparus aurata)
| Autor: | João Saraiva, Merit del Rocio Mora-Ruiz, Pablo Arechavala-Lopez, Maria Filipa Castanheira, Antoni Maria Grau, David Moranta, Carlos Díaz-Gil, S. Nuñez-Velázquez, S. Ledesma-Corvi |
|---|---|
| Přispěvatelé: | Fundação para a Ciência e a Tecnologia (Portugal) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
media_common.quotation_subject
Brain Monoamines Spatial use Fish welfare Aquatic Science Biology lcsh:Aquaculture. Fisheries. Angling 03 medical and health sciences Animal science Aggressiveness Aquaculture Juvenile 030304 developmental biology media_common lcsh:SH1-691 0303 health sciences Environmental enrichment business.industry Horizontal distribution 04 agricultural and veterinary sciences Aquaculture management 040102 fisheries 0401 agriculture forestry and fisheries Fish Structural complexity Animal Science and Zoology business Welfare Body condition |
| Zdroj: | Aquaculture Reports, Vol 15, Iss, Pp-(2019) Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 2352-5134 |
| Popis: | Current production systems of finfish aquaculture, and in particular intensive farming systems, can cause welfare problems leading not only to poor condition of the fish but also to a decrease in product quality. Adding structural environmental enrichment (EE) to bare rearing environments may improve the welfare of certain cultured fish. In this study we experimentally demonstrate the positive effects of adding structural EE on rearing environments of juvenile seabream (Sparus aurata). Fish maintained for 35 days with EE showed less aggression and interactions with the net pen, and lower erosion of pectoral and caudal fins, compared to fish kept in bare conditions (non-enriched, NE). In addition, EE modified the horizontal distribution of fish in the experimental cage, increasing the use of the inner areas. Non-significant effects of EE were observed on fish body condition and growth, and on brain monoamines levels and mortality. Nevertheless, this work highlights the potential use of structural EE to improve welfare of juvenile seabream, which might be feasible to apply at larger-commercial scale. This study received Portuguese national funds from FCT - Foundation for Science and Technology through project UID/Multi/04326/2019, and Spanish national funds from MINECO (R+D project: PHENOFISH; ref. CTM2015- 69126-C2-1-R). |
| Databáze: | OpenAIRE |
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